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1996

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Articles 31 - 60 of 81

Full-Text Articles in Soil Science

Geraldton Region Land Resources Survey, L Gary Rogers, National Landcare Program (Australia) Jan 1996

Geraldton Region Land Resources Survey, L Gary Rogers, National Landcare Program (Australia)

Land resources series

This report presents results from soil and landform mapping at a scale of 1:250,000 for approximately 2.1 million hectares of the wheat-sheep belt of Western Australia. The study area corresponds with the Geraldton advisory district for Agriculture Western Australia and is the northern extent of the wheatbelt. The area covers parts of three major geological regions of Western Australia: the Perth Basin, Carnarvon Basin and the Yilgarn Craton. Fifty-one soil-landscape systems have been identified, some of which have been divided into subsystems, and are illustrated on the accompanying maps. The landform, parent material, rainfall, land use, native vegetation and soils …

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Wellington-Blackwood Land Resources Survey, Peter J. Tille, Georgina Wilson, National Landcare Program (Australia) Jan 1996

Wellington-Blackwood Land Resources Survey, Peter J. Tille, Georgina Wilson, National Landcare Program (Australia)

Land resources series

This report presents descriptions to accompany land resource maps of the Wellington- Blackwood district, east of Bunbury in the south-west of Western Australia. The maps cover an area of about 760,000 hectares and are presented as two map sheets at a scale of 1:100,000. Four different physiographic zones cover the survey area: • The Western Darling Range Zone occupies the major portion of the area and consists of a deeply dissected lateritic plateau overlying crystalline rocks. Three soil-landscape systems containing 24 subsystems have been identified and mapped within this zone. • The Eastern Darling Range Zone is in the south-east …

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Burt County Test Hole Logs, Raymond R. Burchett, Frank A. Smith Jan 1996

Burt County Test Hole Logs, Raymond R. Burchett, Frank A. Smith

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

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No-Till Sowing : Helping To Keep Cropland Soils In Place, Kevin Bligh, Paul Findlater Jan 1996

No-Till Sowing : Helping To Keep Cropland Soils In Place, Kevin Bligh, Paul Findlater

Journal of the Department of Agriculture, Western Australia, Series 4

Repeated erosion of tilled land can ;ower crop and pasture yields because of reduced available moisture and nutrient storage. Kevin Bligh and Paul Findlater look at the causes of water and wind erosion and the role of no-till sowing in minimising erosion.

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Evaluation Of The Crop Growth Component Of The Root Zone Water Quality Model For Corn In Ohio, Sue E. Nokes, Feliks M. Landa, Jon D. Hanson Jan 1996

Evaluation Of The Crop Growth Component Of The Root Zone Water Quality Model For Corn In Ohio, Sue E. Nokes, Feliks M. Landa, Jon D. Hanson

Biosystems and Agricultural Engineering Faculty Publications

The Root Zone Water Quality Model (RZWQM) is a computer model developed to simulate water, chemical, and biological processes in the root zone of agricultural management systems. As of this writing RZWQM is in the beta-testing phase of development. This article reports on a parameterization and evaluation study performed in Ohio on field corn for the crop growth component of RZWQM. The generic crop growth model in RZWQM had not previously been parameterized or tested on field corn. This article reports the results of such a study. One year of data was used to calibrate RZWQM, and two additional years …

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Performance Of Vegetative Filter Strips With Varying Pollutant Source And Filter Strip Lengths, Puneet Srivastava, Dwayne R. Edwards, Tommy C. Daniel, Philip A. Moore Jr., Thomas A. Costello Jan 1996

Performance Of Vegetative Filter Strips With Varying Pollutant Source And Filter Strip Lengths, Puneet Srivastava, Dwayne R. Edwards, Tommy C. Daniel, Philip A. Moore Jr., Thomas A. Costello

Biosystems and Agricultural Engineering Faculty Publications

Vegetative filter strips (VFS) can reduce runoff losses of pollutants such as nitrogen (N) and phosphorus (P) from land areas treated with fertilizers. While VFS effectiveness is considered to depend on lengths of pollutant source and VFS areas, there is little experimental evidence of this dependence, particularly when the pollutant source is manure-treated pasture. This study assessed the effects of pollutant source area (fescue pasture treated with poultry litter) length and VFS (fescue pasture) length on VFS removal of nitrate N (NO3-N), ammonia N (NH3-N), total Kjeldahl N (TKN), ortho-P (PO4-P), total P (TP), …

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Septic Systems For Homeowners, William O. Thom Jan 1996

Septic Systems For Homeowners, William O. Thom

Agriculture and Natural Resources Publications

Septic systems are an effective, long-standing method for collecting, treating, and disposing of wastewaters from rural and surburban homes that do not have access to municipal sewage treatment plants. They collect and treat wastewaters produced in the bathroom, kitchen, and laundry of a home before discharging them into the soil. These systems are used by homeowners in every county in Kentucky.

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Annual Departures From Average Annual Precipitation In Nebraska, 1876-1995/ Annual Installation Of Irrigation Wells (1937-1995), Conservation Survey Division Jan 1996

Annual Departures From Average Annual Precipitation In Nebraska, 1876-1995/ Annual Installation Of Irrigation Wells (1937-1995), Conservation Survey Division

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

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Regional Hydrogeologic Summaries From Domestic Water-Well Quality In Nebraska -- North Central Tablelands, D. C. Gosselin, J. Headrick, X- H. Chen, S. E. Summerside Jan 1996

Regional Hydrogeologic Summaries From Domestic Water-Well Quality In Nebraska -- North Central Tablelands, D. C. Gosselin, J. Headrick, X- H. Chen, S. E. Summerside

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

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Regional Analysis Of Rural Domestic Well-Water Quality -- East Central Dissected Plains, D. C. Gosselin, X- H. Chen, S. E. Summerside Jan 1996

Regional Analysis Of Rural Domestic Well-Water Quality -- East Central Dissected Plains, D. C. Gosselin, X- H. Chen, S. E. Summerside

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

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Infiltration Of Fecal Bacteria Through Soils: Timing And Tillage Effects, Mark S. Coyne, C. S. Stoddard, John H. Grove, William O. Thom Jan 1996

Infiltration Of Fecal Bacteria Through Soils: Timing And Tillage Effects, Mark S. Coyne, C. S. Stoddard, John H. Grove, William O. Thom

Soil Science News and Views

Land-applying animal wastes potentially exposes humans and animals to fecal pathogens, either by direct contact with soil and produce, or via ground water contamination. Some of these organisms are Salmonella, certain pathogenic Escherichia coli strains, protozoa such as Cryptosporidium and Giardia, and enteric viruses. Whether soil adequately filters these pathogens before they reach ground water depends on the interaction of porosity, texture, depth, water content, rainfall intensity and duration, and soil management.

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Resource News-Summer 1996 Jan 1996

Resource News-Summer 1996

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

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Registered Irrigation Wells In Nebraska-Summer 1995, Mack Ann, Jim Weir, Jennifer Sharpe Jan 1996

Registered Irrigation Wells In Nebraska-Summer 1995, Mack Ann, Jim Weir, Jennifer Sharpe

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

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Vegetative Filter Strip Design For Grassed Areas Treated With Animal Manures, Dwayne R. Edwards, Tommy C. Daniel, Philip A. Moore Jr. Jan 1996

Vegetative Filter Strip Design For Grassed Areas Treated With Animal Manures, Dwayne R. Edwards, Tommy C. Daniel, Philip A. Moore Jr.

Biosystems and Agricultural Engineering Faculty Publications

Vegetative filter strips (VFS) are a low-cost management option that have been demonstrated to be effective in reducing runoff transport of fertilizer constituents applied to grassed areas (pasture or meadow). Runoff quality studies involving fertilizers applied to grassed areas suggest that VFS can be designed by assuming that (1) only infiltration is responsible for pollutant removal, (2) the first post-application runoff event is most important from a water quality perspective (enabling a design event approach), and (3) no pollutant build-up that degrades VFS performance will occur. The purpose of this study was to develop a VFS design algorithm for grassed …

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Quality Of Runoff From Four Northwest Arkansas Pasture Fields Treated With Organic And Inorganic Fertilizer, Dwayne R. Edwards, Tommy C. Daniel, John F. Murdoch, Philip A. Moore Jr. Jan 1996

Quality Of Runoff From Four Northwest Arkansas Pasture Fields Treated With Organic And Inorganic Fertilizer, Dwayne R. Edwards, Tommy C. Daniel, John F. Murdoch, Philip A. Moore Jr.

Biosystems and Agricultural Engineering Faculty Publications

Long-term land application of animal manures, even at agronomic rates, can promote accumulation of soil phosphorus (P) which can, in turn, contribute to increased P loadings to downstream waters. The objective of this study was to assess the soil and runoff effects of replacing animal manure as a soil amendment with inorganic fertilizer (ammonium nitrate, NH4NO3) on fields that had been treated previously with animal manures. Runoff from two pairs of small fields (0.57 to 1.46 ha) was sampled from September 1991 to April 1994. All fields had been treated previously with animal manures; after runoff …

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Poultry Litter-Treated Length Effects On Quality Of Runoff From Fescue Plots, Dwayne R. Edwards, Philip A. Moore Jr., Tommy C. Daniel, Puneet Srivastava Jan 1996

Poultry Litter-Treated Length Effects On Quality Of Runoff From Fescue Plots, Dwayne R. Edwards, Philip A. Moore Jr., Tommy C. Daniel, Puneet Srivastava

Biosystems and Agricultural Engineering Faculty Publications

Using experimental data and/or mathematical simulation models to identify practices that reduce pollution from manure-treated areas is sometimes perceived as limited by the unknown validity of extrapolating plot-scale data to larger areas and by uncertainties in modeling transport of various pollutants. The objectives of this study were to assess the effect of length of manure treatment on runoff concentrations of poultry litter constituents and to define the modes of transport (particulate versus soluble) for nitrogen (N), phosphorus (P), carbon (C), and solids. Poultry litter was applied to three 1.5- x 18.3-m fescue (Festuca arundinacea Schreb.) plots with runoff collection …

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Application Of Simplified Phosphorus Transport Models To Pasture Fields In Northwest Arkansas, Dwayne R. Edwards, C. T. Haan, Andrew N. Sharpley, John F. Murdoch, Tommy C. Daniel, Philip A. Moore Jr. Jan 1996

Application Of Simplified Phosphorus Transport Models To Pasture Fields In Northwest Arkansas, Dwayne R. Edwards, C. T. Haan, Andrew N. Sharpley, John F. Murdoch, Tommy C. Daniel, Philip A. Moore Jr.

Biosystems and Agricultural Engineering Faculty Publications

Runoff transport of phosphorus (P) is often predicted from simple equations with parameters determined from data applicable primarily to row-cropped and fallow cover conditions. The applicability, accuracy, and precision of such P transport prediction equations under pasture situations are less well defined. The objectives of this study were to determine parameters of simplified runoff P transport equations for pasture fields and to assess the accuracy and precision of the equations. Runoff, sediment yield, soluble P transport, and particulate P transport data were collected from four pasture fields in northwestern Arkansas. Runoff event enrichment ratios and extraction coefficients were computed, and …

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Polk County Test Hole Logs, Raymond R. Burchett, Frank A. Smith Jan 1996

Polk County Test Hole Logs, Raymond R. Burchett, Frank A. Smith

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

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Resource News-Spring 1996 Jan 1996

Resource News-Spring 1996

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

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North Central Tablelands Hydrogeologic Summary From Domestic Well-Water Quality In Rural Nebraska, D C. Gosselin Jan 1996

North Central Tablelands Hydrogeologic Summary From Domestic Well-Water Quality In Rural Nebraska, D C. Gosselin

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

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Regional Analysis Of Rural Domestic Well-Water Quality -- Southern Panhandle Tablelands, D. C. Gosselin, J. Headrick, X- H. Chen, S. E. Summerside Jan 1996

Regional Analysis Of Rural Domestic Well-Water Quality -- Southern Panhandle Tablelands, D. C. Gosselin, J. Headrick, X- H. Chen, S. E. Summerside

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

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Geology Along Selected Lincoln Bike Trails, R. K. Pabian Jan 1996

Geology Along Selected Lincoln Bike Trails, R. K. Pabian

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

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Regional Hydrogeologic Summaries From Domestic Well-Water Quality In Rural Nebraska -- Sand Hills, D. C. Gosselin, J. Headrick, X- H. Chen, S. E. Summerside Jan 1996

Regional Hydrogeologic Summaries From Domestic Well-Water Quality In Rural Nebraska -- Sand Hills, D. C. Gosselin, J. Headrick, X- H. Chen, S. E. Summerside

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

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Regional Hydrogeologic Summaries From Domestic Well-Water Quality In Rural Nebraska -- Missouri River Lowlands, D. C. Gosselin, J. Headrick, X- H. Chen, S. E. Summerside Jan 1996

Regional Hydrogeologic Summaries From Domestic Well-Water Quality In Rural Nebraska -- Missouri River Lowlands, D. C. Gosselin, J. Headrick, X- H. Chen, S. E. Summerside

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

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Regional Hydrogeologic Summaries From Domestic Well-Water Quality In Rural Nebraska -- Southeastern Glacial Drift Area, D. C. Gosselin Jan 1996

Regional Hydrogeologic Summaries From Domestic Well-Water Quality In Rural Nebraska -- Southeastern Glacial Drift Area, D. C. Gosselin

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

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Soil Information Sheets For Part Of The Jerramungup Agricultural Area, Tim D. Overheu, Landcare Western Australia, Jerramungup Land Conservation District Committee Jan 1996

Soil Information Sheets For Part Of The Jerramungup Agricultural Area, Tim D. Overheu, Landcare Western Australia, Jerramungup Land Conservation District Committee

Agriculture reports

Each sheet summarises information on the soil's characteristic properties, and associated land use suitability and management. A photograph of a representative profile is provided for each soil. Technical terms are defined in soil sheet glossary. Information is presented under the following headings: soil series and groups, occurence, native vegetation, soil profile description, characteristic soil properties, soil classification and agricultural land use and management.

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Groundwater-Level Changes In Nebraska, Predevelopment To Spring 1994, Mack Ann, Jim Weir, Jennifer Sharpe Jan 1996

Groundwater-Level Changes In Nebraska, Predevelopment To Spring 1994, Mack Ann, Jim Weir, Jennifer Sharpe

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

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Geology Of The Liquid Propane Gas Storage Facility Near Greenwood, Nebraska, R. R. Burchett Jan 1996

Geology Of The Liquid Propane Gas Storage Facility Near Greenwood, Nebraska, R. R. Burchett

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

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Resource Notes-Academic Year 1995-96 Jan 1996

Resource Notes-Academic Year 1995-96

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

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Resource News-Winter 1995-96 Jan 1996

Resource News-Winter 1995-96

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

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